Lubricator



(No Model.)

I. P. ZIMMERMAN'. LUBRICATOR.

No. 536,824. PatentedApn z, 1895;

5'?) Jaya? 18. '4 all w- 239.1%

t view of my complete device, the same being o said tube 7 extending buta slight distance Nitrat) STATES IRA FRANCIS ZIMMERMAN, OF SEDALIA,MISSOURI.

LUBRICATOR.

SPECIFIGATION forming part of Letters Patent No. 536,824, dated April 2,18.95.

Application tiled September 4.1894.

To a/ZZ whom, t map/concern:

Be it known that I, IRA FRANCIS ZIMMER- MAN, of the city of Sedalia,Pettis county, State of Missouri, have invented certain new and usefulImprovements in Grease-Cup Attachments for Crank-Pins, of which thefollowing is a full, clear, and vexact description, reference being hadto the accompanying' drawings, forming a part hereof.

My invention relates to a grease cup attachinent for crank-pins, theobject of my invention being to construct a device of this vcharacterthat shall possess superior advantages in point of simplicity,durability and general efficiency.

Myinvention consists in certain novel features of construction,combination and arrangement of parts, hereinafter specified and claimed.

Referring to the drawings: Figure 1 is an elevation of a portion of thecrank-shaft with its usual attachments, and showing my improvement inposition as required for practical use. Fig. 2 is a longitudinalsectional shown attached to the crank-pin. Fig. 3 is a longitudinalsectional view of the casing and the tube that operates independentlywith-in said casing. Fig. 4 is a vertical sectional view takenapproximately on the indicated line 4-4 of Fig. 3, and showing theconstruction of the head of the tube. Y

Referring by numerals to the accompanying drawings, 1 indicates theordinary crankshaft to which is secured in the ordinary manner the crank2. Upon the outer end of this crank 2, and held in position thereon bymeans of the crank-pin 3, is the usual connecting-rod 4. Centrallylocated i n the end of the crank-pin 3, and extending a slight distancetoward the rear of said crank-pin, is a passage 5. Said passage 5communicates With a vertical passage 6 in the crank-pin, said verticalpassage 6 communicating with the periphery of said pin, and saidperiphery being engaged by the bearing formed in the connecting-rod 4. Aportion of the passage 5 is screw-threaded and adapted to receive theexteriorly screw-threaded end of a tube 7,

beyond the outer surface of the head of the driving-arm. To the outerend ofthis tube Serial No. 5 22,1 2 7. (No model.)

7 is secured-an ordinary elbow S, to the other end of said elbow therebeing secured one end Vof a tube 9, said tube 9 extending parallel withthe crank 2 and terminating at a point slightly above a horizontal linedrawn through the'diametrical center of the crank-shaft 1.

A casing 10 is provided with an integral upwardly extending portion l1interiorly screw-threaded, by means of which said casing 10 is securedto the lower end of the tube slightly larger than the interior diameterof the main portion of the casing, the purpose of which will bepresently shown. The exterior of the forward end of the casing isscrewthreaded as indicated by 14, and the inner periphery of saidforward end being raised 'as indicated by 15.

A tube 16 is adapted to be located in the casing 10, said tube 16 beingprovided with a head 17 that snugly tits within the enlarged interiordiameter of the casing 10 immediately below the projection 1l. This headis circular in cross-section, and is provided with the centrally locatedperipheralgroove 18 and cross-passages 19, said cross-passagescommunicating with the groove 1S, and with the centrally locatedlongitudinal passage in the tube 16. When this tube 16 is in positionwithin the casing 10, it projects a slight distance beyond thescrew-threaded end 14 of said casing 10.

Suitable packing 2O is located in the recess and an hinteriorlyscrew-threaded cap 21 provided with an aperture 22 in its face, ispassedover the end of the tube 16 and screwed upon the forward end ofthe casing l0. This forms an ordinary stuffing-box.

That portion of the tube 16 that extends through the aperture 22 in thecap 2l is exteriorly screw-threaded and has positioned IOO thereon a cup23, the same being interiorly screw-threaded its entire length.

A plunger 24 is adapted to screw into the cup 23, and is provided with astem 25 and hand-Wheel 2G. Thus it will be seen that the centers of thecasing, tube 16, the cup and the plunger are all on a direct line withthe center of the crank-shaft 1. Consequently, when said crank-shaft 1rotates, the casing, tube 16, cup and plunger rotate but at no time dothey revolve.

The operation is as follows: Should the drivingarm, crank andcrank-shaft be in motion and it is desired to lill the cup 23, theoperator grasps with one hand the cup 23 and with the other manipulatesthe hand-Wheel 26, until the plunger 24 is removed from the cup. Duringthis operation the casing continues t rotate, but, by reason of the tube1G and cup 23 being independent from the casing 10, they will remain intact and not turn as long as the cup 23 is in the grasp of the operator.When the plunger 24 has been removed from the cup 23, the grease orlubricant is placed in said cup and the plunger 24 again positioned inthe forward end of said cup. When it is desired to cause the grease orlubricant to pass into the recess in the crankpin 3, the operator graspsthe cup 23 in one hand and with the other manipulates the hand-Wheel 26in the proper direction which causes the plunger 24 to enter the cup 23,thus pressing against the grease or lubricant. This will force saidgrease or lubricant through the passage in the tube 1G, through thecross-passage 19 that leads to the passage in the upwardly extendingportion l1 of the casi ing, through the tubes 9 and 7 and into therecess or passages and 6 in the crank-pin 3. Thus the grease orlubricant is forced to the desired point. Thus it Will be seen how Ihave constructed a grease cup attachment for crank-pins that is simple,easily operated, and complete in its workings.

What I claim is- The improved grease-cup attachment for crank-pins,comprising a crank pin, a tube connected to said pin and extendingparallel thereto, a cylindrical casing located parallel with said crankpin, having a circular bore enlarged at one end and provided at theopposite end with a stufiing-box, said enlarged bore being internallyscrew-threaded, a plug detachably located in the free end o'l' saidscrew-threaded enlargement, a tubular-connection between said casing andsaid tube, a horizontal tube provided at one end with a cylindrical-heador enlargement Which is mounted to revolve in the enlargement ot' saidcasing, said head having a peripheral recess and connectedcross-passages, and a grease-cup mounted on the end of saidhorizontal-tube which is opposite said enlargement, exterior of saidcasing and adjacent said stuffing box, substantially as hereinspecified.

In testimony whereof I aflix my signature in presence of two Witnesses.

IRA FRANCIS ZIMMERMAN.

Witnesses:

CHARLES VAN ANTWERP, CHAs. G. TAYLOR.

